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The Jena-Xing group wins Best Student Paper Awards at the Compound Semiconductor Week (CSW) 2018

Thursday, June 21, 2018

Top: Cornell ECE Ph.D. student Shyam Bharadwaj receives a CSW Best Student Paper Award. Bottom: Cornell ECE Ph.D. student Wenshen Li receives a CSW Honorable Mention Award.

Cornell ECE students win Best Student Paper Awards at the Compound Semiconductor Week (CSW) 2018

 Ph.D. students from the Jena-Xing group won a best student paper award and an honorable mention at the 2018 Compound Semiconductor Week, which brought together researchers, scientists and engineers from around the world to Boston, Massachusetts from May 29-June 1.

 Cornell ECE Ph.D. student Shyam Bharadwaj won a CSW Best Student Paper Award 2018 for his paper, “Comparative Study of Electroluminescence in GaN and AlGaN QW Sub-300 nm DUV LEDs.”

 “A major scientific and engineering research challenge today is to make high efficiency semiconductor deep-ultraviolet (DUV) light sources.  The study I presented at CSW 2018 involved 2 types of DUV light emitting diodes (LEDs).  Through simulation and experimental measurements of the angle resolved photon emission pattern and their TE/TM polarization ratio, I observed an enhancement in TE/TM ratio for the GaN-active-region devices over the AlGaN ones.  My studies confirm the GaN quantum well LED – an idea conceived in our research group – can be superior to other alternatives.” said Bharadwaj. Just last year, Cornell ECE student and Shyam’s colleague Kevin Lee had won a best student paper award in the International Workshop on UV Materials and Devices held in Fukuoka, Japan for his studies of electrical conductivity of the semiconductors necessary for deep-UV LEDs.

 Also in CSW 2018, Cornell ECE Ph.D. student Wenshen Li received an honorable mention for his paper, “Threshold Voltage Engineering in E-mode Ga2O3 Fin-channel Transistors." 

 “Ga2O3 is a newly discovered wide bandgap semiconductor, which promises high-performance power electronics and related applications for increasing the energy efficiency of power circuits.  Our group recently designed and demonstrated the first kilovolt Ga2O3 transistors that are normally off.  In this presentation, I discussed the design principles and challenges in the physics in this class of electronic devices.” said Li.

 Both Bharadwaj and Li are students from the Jena-Xing Research Group at Cornell University, which is led by Professors Debdeep Jena and Huili (Grace) Xing. Both Jena and Xing hold joint appointments in the School of Electrical and Computer Engineering (ECE) and the Department of Materials Science and Engineering (MSE) at Cornell.  They are also faculty members in the Kavli Institute for Nanoscience at Cornell (KIC) and the Cornell Center for Material Research (CCMR).  In the joint laboratory led by Jena and Xing, they explore the physics, materials science and applications of semiconductors.

 The Compound Semiconductor Week (CSW) is the premier forum for science, technology and applications of compound semiconductors. As in previous years, CSW 2018 brought together the 45th International Symposium on Compound Semiconductors (ISCS) and the 30th International Conference on Indium Phosphide and Related Materials (IPRM).  The conference was attended by over 400 participants this year.

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